Abstract
The main objective of this work is to determine the differences found in friction calibration maps when applying different methodologies of load-lubricant application during the implementation of ring compression tests. To accomplish this aim, friction calibration maps have been obtained by conducting ring compression tests to flat rings of Al-7075 aluminum alloy under lubrication. The compression tests were conducted using two different methodologies, incremental and continuous. Simultaneously, in order to determine the particular values of the Coulomb friction coefficient, the same problem was simulated using the finite element code ABAQUS. Calibration curves from experiments and simulation are drawn to compare the friction coefficients obtained for each load methodology. This study allows to quantify the differences found when using both types of load methodology in the determination of friction coefficients by the ring compression test, giving some guidelines about the use of these maps depending on the actual process conditions.
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